Roller-bearing cage.



G. S. LOCKWOOD.

ROLLER BEARING GAGE.

APPLICATION FILED OCT. 19, 1912.

1,095,336, Patented May 5, 1914.

BEARING COMPANY, or" HARRISON, 1\TEW ,JERSEY, .-n-oonroitmrron-.or

JERSEY.

nonnnnrinnaindjciien Q Specification of LettersPatentt Patented 1914.

Application filed October 19- 1,912. Serial'No. 726,615.

' wool), a citizen of the United States, residing at 289 Market street, Newark, county of Essex, and State of New Jersey, have invented certain new and useful Improven'ients in Roller-Bearing Cages, fullyv de.

scribed and represented in the following specification and the accompanying drawings, forming a part of the same.

The present invention relates to roller bearings having a series of rolls fitted between a shaft and the cylindrical bore ofa casing, and guided in their movements by acage having heads at opposite ends of the rol s. 1

It has been common to fit the inner or outer periphery of the cage-heads to contact looselyl with the shaft or the bore of the cas ing, to hold the cage concentric with the shaft in its movements. As such heads are made thin to avoid weight and any increase in the length of the. casing, the periphery of the head cuts or wears into the shaft or bore of thelcasing when moving in contact therewith, thus lopsening the cage and permitting it to move out of the desired path.

The object of the present invention is to greatly increase the bearing surface of the cage-heads upon the cylindrical surface within the casing so as to longer maintain the cage in a working relation to the shaft, and this objectis efiectedby projecting integral lugs from the inner or'outer periphery of the cage-heads between the bearing surfaces of the rolls, to contact lightly with the shaft or casing.

By projecting the lugs toward one another, which can be done without interference with the rolls, the bearing surface may be increased to any desired extent, and without necessitating any increase in the length of the casing, or any necessity of thickening the heads of the cage to increase their hearing surface. If projected from the outer eriphery of the head, the lugs move in contact with the bore of the casing, and if projected from the inner periphery they move in contact with theshaft.

The invention will be understood by reference to the annexed drawing, in whic'h- Figure 1 is an end view of a cage and its rolls with the nearer head removed; Fig. 2 is a longitudinal section of the cage and a casing embracing the rolls; Fig. 3 isan edge yiew of one of the heads with the'lugs upon its inner portion to move upon the shaft; and F 1g. 4 is a representation, in its upper half, of a blank to form the head with lugs upon its outer periphery, and in its lower half, of ahead to form lugs upon the inner periphery.

a designates the shell of the casing with flanges b at the ends between which the cage and rolls revolve around the shaft c.v

The cage-heads d areshown stamped of sheet-metal connected by tie-bars 6 between the rolls f, which are shown hollow, formed each of a spirally wound strand. The heads are shown with studs 9 pressed therefrom to enter the ends of the rolls to hold them in the cage when removed from the hearing. The studs do not contact with the rolls when in motion, but the rolls are guided by the tie-bars e.

In Figs. 1' and 2, the outer periphery of each head is formed with integral lugs h which are first formed as lugs h upon a flat blank d as shown in the upper part of Fig. i and then bent inwardly, by stamping in suitable dies, at right angles to the plane of the blank, and at the same time curved as shown in Fig. 1, to form collectively a sectional cylindrical bearing to rest upon the bore of the casing. With such construction, the bore or inner periphery d of the blank d is made a little larger than the shaft to clear the same as shown in Figs. 1 and 2.

In the lower part of Fig. 41, lugs h are shown projected from the inner periphery of the blank, and an edge view of a head having such lugs adapted to bear movably upon the shaft, is shownin Fig. 3'. WVith this construction, the outer periphery of the,

sheet-metal'and may be furnished with any desired bearing upon the cylindrical surfaces within the casing. The invention also has the advantage of being applicable to rollerhearin s alread Y constructed with thin ca ea .l' 1 heads which are deficient 1n tneir bearim 5 1 1 a and tend constantly to cut into the shaft or casing with which they move in contact. Such cage-heads can be removed from the cage and the cage-heads described herein substituted therefor, without requiring any alteration whatever in the casing.

I am aware that roll-separators have been used which rest inovably upon the interior of the casing; but the carts of my cage which furnish the increased bearing-surface do not contact with the rolls or serve in any way to separate or guide them, but the cage requires other means of guiding the rolls, which are shown in the bars 6 in Figs. 1 and 2. Fig. 1 clearly shows that the inwardly turned lugs which afford the increased bearing-surface for my cage-heads do not contact with the rolls, but lie between the curved. surfaces of the rolls so as to clear the same; and my invention includes this oeasae particular disposition of the bent lugs upon the heads.

Havingthus set forth the nature of the invention what is claimed herein is:

In a roller hearing the combination, with a casing and rolls therein, of a roll-cage having sheet-metal heads with tie-bars connectin the s are between the rolls to guide the mils, and a series of bearing-lugs projected from the peripheries of the heads toward one another between the rolls and curved to fit niovably in contact with the cylindrical surface or" the bearing, and studs upon the heads to hold the rolls in the cage when removed from the casing.

In testimony whereoi I have hereunto set ny hand in the presence of two subscribing witnesses.

CHARLES S. LOCKNOOD. \Vi tnesses C. STULTS, E. I. VILLIAMS. 

